????：<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">&
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
</body>
<script>
// 聲明變量a并賦值
var a = 10;
var b = a * 10;
console.log(typeof b);
</script>
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?? ???：查無此人?? ??：2019-03-15 09:18:17
???? ??：完成的不錯(cuò)。下次把代碼縮進(jìn)，看著整潔。繼續(xù)加油